Question

a biased coin tossed four times P(T)=2/3   x is number of tails observed construct the table...

a biased coin tossed four times P(T)=2/3   x is number of tails observed

construct the table of probabulity function f(x) and cumulative distributive function F(x)

and the probability that at least on tail is observed ie P(X>1)

Math   Statistics-And-Probability   
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Answer #1
Table of Probability function and cummulative probability function
x f(X) F(X)
0 0.0123 0.0123
1 0.0988 0.1111
2 0.2963 0.4074
3 0.3951 0.8025
4 0.1975 1

Probability that atleast on tail is observed is 0.9877

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